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WEATHER BLOG: Oahu, Kauai County stay beneath flood watch as kona low lingers

EDITOR’S NOTE: See in the present day’s story for the newest climate updates.

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UPDATE: 4:50 am.

The flash flood warning for Oahu has expired however the island and Kauai County stay beneath a flood watch via Tuesday afternoon.

The Nationwide Climate Service in Honolulu says flash flooding brought on by extreme rainfall stays attainable on Kauai, Niihau and Oahu.

“Rain occasions of this dimension could cause catastrophic flooding and have an effect on areas that don’t often flood,” the climate service says. “Low spots in roads will turn into harmful and impassable as a result of extreme runoff. Particles in streams and gulches might clog bridges and culverts leading to harmful flooding. Quite a few landslides are anticipated in areas with steep terrain. Extra heavy rainfall on Oahu may trigger extreme flooding impacts, as six to 10 inches of rain has fallen over the whole island since Monday.”

Forecaster say heavy rain will proceed throughout Oahu and Kauai County as a kona low pulls deep tropical moisture over the western finish of the island chain, bringing the specter of heavy rain and some thunderstorms with gusty winds.

The forecast for the whole state requires the kona low northwest of the islands to float away from the realm on Wednesday.

“A drier airmass transferring in from the east has begun to succeed in the Huge Island and Maui, however just a few heavy showers are attainable over Maui County this morning. A breezy and drier commerce wind climate sample will unfold over all islands by Thursday, persevering with into the weekend,” the climate service mentioned

TUESDAY 12:58 a.m.

The Nationwide Climate Service in Honolulu has prolonged the flash flood warning for Oahu till 4:15 a.m. as heavy rain causes flooding all through the island.

At 12:58 a.m., radar indicated that heavy rain has diminished over the japanese half of Oahu, however continues at a fee of 1 to 2 inches per hour over the western half. Runoff will proceed for the following a number of hours over the whole island, so flooding stays a priority.

Avoid streams, rivers, drainage ditches, and culverts, even when they’re at present dry.

10:45 p.m.

Mayor Rick Blangiardi signed an emergency proclamation Monday night time for the Metropolis & County of Honolulu as heavy rains, sturdy winds, and flooding proceed to pummel the island, posing a severe danger to residents and property.

An announcement from the mayor’s workplace mentioned the flash flood warning till at the least 1:15 a.m could also be prolonged as circumstances persist or worsen.

The emergency proclamation offers the mayor the authority to droop county ordinances to guard the well being, security and welfare of residents in Honolulu, the assertion mentioned.

10:10 p.m.

Energy was misplaced to tons of of downtown Honolulu and Chinatown companies, authorities buildings and residents Monday night time after a transformer failed amid the continuing kona low storm.

Hawaiian Electrical warned prospects to plan for an prolonged outage.

The utility’s Iwilei substation was flooded and crews had been on the scene, however officers with the corporate mentioned they’ll be unlikely to pump out the power till the rain stops.

Officers mentioned energy wasn’t more likely to return till Tuesday morning on the earliest.

The corporate mentioned the affected space is bounded roughly by South Beretania Road, River Road, Ala Moana Boulevard and Punchbowl Road. It contains the State Capitol, federal courthouse, state workplace buildings, workplace towers on Bishop and Alakea streets and residential condominiums and residences.

Hawaiian Electrical mentioned crews must pump out the substation earlier than assessing the harm and trying to restore the tools.

The heavy rains and flooding brought about at the least three transformers to fail Monday night time, with the final transformer failing at about 9:30 p.m.

“We perceive the inconvenience that this causes for our prospects and we’re dedicated to restoring energy as safely and as rapidly as attainable,” mentioned Jim Alberts, senior vice chairman of operations.

Nevertheless, it’s unsure when the rain will let up as a result of Oahu stays beneath a flash flood warning till at the least 1:15 a.m. and was anticipated to be pummeled by heavy rain and attainable thunderstorms into Tuesday.

On Monday night time, the state Division of Schooling introduced that every one public faculties are anticipated to be open Tuesday, apart from Pearl Metropolis Highlands Elementary and Farrington Excessive, which will probably be closed as a result of flooding.

9:55 p.m.

The Nationwide Climate Service in Honolulu has prolonged the flash flood warning for Oahu till 1:15 a.m. as heavy rain causes flooding all through the island

“At 9:48 p.m., Oahu Division of Emergency Administration reported ongoing vital flash flooding, particularly within the city areas of Honolulu,” the warning says. “A number of car rescues, water evacuation requests, inundated houses, and street closures have been reported. The H-1 freeway and several other roads on the town are experiencing appreciable flooding, so restrict journey wherever attainable.”

Officers advise the general public to not journey until making an attempt to flee flooding.

Metropolis officers mentioned “there’s a appreciable danger to life and property.”

9:45 p.m.

The flood look ahead to the Huge Island and Maui County has been canceled however continues for Oahu and Kauai County via Tuesday afternoon.

Oahu additionally stays beneath a flash flood warning till at the least 10:15 p.m. with heavy rain and thunderstorms nonetheless battering the island

The heavy rain has led to the closure of H-1 westbound at Ward Avenue as a result of flooding.

7:09 p.m.

The Nationwide Climate Service in Honolulu has prolonged the flash flood warning for Oahu till 10:15 p.m.

At 7:03 p.m., radar confirmed the vast majority of the island of Oahu was getting rain on the fee of 1 to 2 inches per hour, with a big space of heavy rain anticipated over the island from the south this night at charges as much as three inches per hour.

Extra vital flooding hazards are attainable, particularly for city areas which have already skilled flooding.

6:15 p.m.

Kamehameha Freeway was shut down between Waiahole Valley Highway and Our Woman of Mount Carmel church as a result of flooding after 5:30 p.m.

4:53 p.m.

Gov. David Ige signed an emergency declaration for the whole state of Hawaii as heavy rains from a Kona low climate system trigger flooding and property harm all through the islands.

Ige’s workplace mentioned the emergency declaration offers the governor the authority to spend state funds as appropriated to guard the well being, security and welfare of residents and guests in Hawaii.

The declaration helps state and county efforts to supply fast and environment friendly aid of struggling, harm, and losses brought on by flooding and different results of the heavy rains, officers mentioned in a information launch

The catastrophe emergency aid interval continues via Friday.

4:22 p.m

The Metropolis and County of Honolulu reminds residents to make use of 911 for precise emergencies, together with flood-related incidents.

The town’s COVID-19 Response Group is on the market to reply non-emergency flood-related questions by calling 808-768-2489 till 7:30 p.m.

Residents may entry the Division of Emergency Administration’s Winter 2021 Flood Replace web page for extra data.

4:03 p.m.

The Nationwide Climate Service in Honolulu has prolonged the flash flood warning for the island of Oahu till 7:15 p.m.

At 4 p.m. in the present day, radar indicated rain was falling at a fee of 1 to 2 inches per hour over Oahu from Aiea to Hawaii Kai.

As well as, flash flooding has closed the westbound lanes of the H-1 Freeway close to Center Road.

On the windward facet, stream ranges stay excessive in Waiahole and Waikane, however roads at present stay satisfactory.

4 p.m.

Huge Island residents have three extra shelters out there as of 4 p.m. in the present day:

>> Keaau Armory (prime of Shipman Park)

>> Naalehu Group Middle

>> Pahala Group Middle

Hawaii County authorities ask residents to convey meals and provides; shelters are pet pleasant however animals should be crated.

3:40 p.m.

Hawaiian Electrical crews are working to revive energy to an estimated 20,000 prospects who’ve skilled temporary to prolonged energy outages brought on by extreme climate circumstances since Sunday.

Many of the outages occurred within the southern portion of Hawaii island between Kurtistown and Volcano, and in south Kona.

Those that stay in Orchard Isle, Royal Hawaiian Estates and Wright Highway in Volcano are instructed to anticipate prolonged energy outages as a result of winds and extreme vegetation. Climate circumstances are blocking crews from safely accessing components of the transmission traces that service these areas.

Hawaiian Electrical additionally reminds individuals to remain at the least 30 ft away from harmful downed energy traces.

3:35 p.m.

The Honolulu Metropolis Lights show will shut at 4:30 p.m. in the present day as a substitute of the same old 10 p.m. as a result of poor climate circumstances.

3:05 p.m.

The Honolulu Zoo and all six metropolis golf programs have been closed because of the storm climate.

All scheduled tee instances for in the present day have been canceled. The climate impacts are anticipated to proceed via Tuesday which can require continued closure of the services, in accordance the Division of Enterprise Providers.

2:50 p.m.

Kapaa Quarry Highway in Windward Oahu was closed as a result of flooding this afternoon, in keeping with the climate service.

2:35 p.m.

The Hawaiʻi County Civil Protection Company has issued a water conservation alert for North Kona and introduced a water outage in Waiakea Uka.

2:05 p.m.

A flood advisory has changed the flash flood warning for a big portion of the Huge Island.

The advisory is in impact till 4:30 p.m., Nationwide Climate Service forecasters mentioned.

“At 1:32 p.m., heavy rainfall has eased over the southeast flank of the Huge Island, however just a few areas of reasonable rainfall with charges as much as 1 inch per hour stay from Mountain View to

Wooden Valley,” the advisory says. “Hawaii County Civil Protection mentioned that Freeway 11 stays closed close to Kawa Flats as ponded water slowly drainsout.”

The advisory covers Hilo, Hawaiian Paradise Park, Hawaii Volcanoes Nationwide Park, Wooden Valley, Volcano, Pahala, Glenwood, Punaluu Seashore, Kawa Flats, Mountain View, Naalehu, Hawaiian Acres, Orchidlands Estates, Keaau, Pahoa, Hawaiian Ocean View, Papaikou, Fern Forest and Eden Roc.

1:20 p.m.

The Nationwide Climate Service has issued a flash flood warning for Oahu till 4:15 p.m.

“At 1:16 p.m., radar confirmed that heavy rainfall was growing over Oahu. A extra intense band of rainfall, with charges of three to 4 inches per hour, was approaching Oahu from the southwest. Rainfall from this band will unfold throughout the island over the following a number of hours,” the warning says.

NWS additionally mentioned a extreme thunderstorm is threatening components of Oahu this afternoon.

“At 1:11 p.m., doppler radar was monitoring a powerful thunderstorm 11 miles south of Barbers Level, or 20 miles southwest of Honolulu, transferring north at 40 mph,” the climate service mentioned.

The storm is packing wind gusts of fifty to 55 mph, which is powerful sufficient to “knock down tree limbs and blow round unsecured objects.”

The warning covers Honolulu, Waipio, Waimanalo, Wahiawa, Waialua, Schofield Barracks, Hawaii Kai, Kaaawa, Ahuimanu, Punaluu, Wheeler Subject, Waikele, Kapolei, Kahuku, Kalihi, Barbers Level, Waiahole, Moanalua, Nanakuli, and Pearl Metropolis.

11:38 p.m.

The Nationwide Climate Service has issued a flash flood warning for a lot of the Huge Island till 2 p.m.

The warning covers the identical areas as the sooner flood advisory, together with together with Hilo, Volcano, Keaau.

“At 11:30 a.m., radar and rain gauges indicated that rainfall has intensified over the Kau and Puna Districts of the Huge Island,” the warning says. “Peak rain charges have reached 2 to three inches per hour close to Mountain View and Pahala. Hawaii County Civil Protection reported that the Belt Freeway close to Kawa Flats has been partially closed. Continued runoff might utterly shut the freeway.”

11:07 a.m.

The Hawaii Division of Well being’s Clear Water Department has issued brown water advisories for the islands of Oahu and Hawaii island as a result of stormwater runoff from heavy rain coming into coastal waters.

The general public is suggested to remain out of floodwaters and stormwater runoff as a result of attainable overflowing cesspools, sewers and manholes, which will be contaminated from pesticides, animal fecal matter, lifeless animals, pathogens, chemical compounds and related flood particles.

Whereas all coastal areas could also be impacted by runoff, if the water is brown keep out, the advisories mentioned.

UPDATE: 10:50 a.m.

The flood advisory for Kauai has been canceled.

10:40 a.m.

The flash flood warning for Maui has been lifted however flood advisories stay for Kauai, Oahu and far of the Huge Island.

The advisory for Oahu has been prolonged to 1:45 p.m., whereas Huge Island is roofed via 12:45 p.m., and Kauai till 11 a.m.

The Nationwide Climate Service forecasts widespread heavy rain throughout the state in the present day.

“In comparison with the regular stream of moisture yesterday, in the present day we must always see convective bands develop able to producing intervals of torrential rainfall throughout the state,” the forecast says. “Though any space can see heavy rainfall, the heaviest rainfall will start to shift from the japanese half of the state towards the western half of the state later in the present day via Tuesday.”

Forecasters mentioned the climate will start to enhance over the japanese finish of the state by late tonight with a lot drier situation anticipated over Maui County and the Huge Island on Tuesday.

Wet circumstances will proceed for Oahu and Kauai via Tuesday, with extra typical commerce wind climate returning late Wednesday.

9:40 a.m.

The Honolulu Fireplace Division responded to 34 storm-related calls of 18 downed bushes and 5 energy traces, six arcing wires and 5 blown roofs from 8 p.m. Sunday to six a.m. in the present day.

On the Huge Island, the flood advisory has been prolonged till 12:45 p.m. and state well being officers have issued a brown water advisory for the whole island.

UPDATE: 8:40 a.m.

The flash flood warning for Molokai has been lifted however the warning for Maui continues to be in place till 9:15 a.m.

All Maui County public faculties are closed in the present day, though the Division of Schooling mentioned the closures don’t cowl public constitution faculties. All Second Circuit Courts in Maui County are additionally closed in the present day.

8:25 a.m.

A flood advisory has been issued for Kauai till 11 a.m.

“At 7:54 a.m, radar and automatic rain gauges indicated reasonable to heavy rainfall transferring over Kauai from the south. Peak rain charges of 1 to 2 inches per hour had been occurring over the south facet of the island from Kalaheo to Kekaha,” forecasters mentioned.

On Oahu, a brown water advisory was issued for the whole island as a result of storm-water runoff coming into into coastal waters. “The general public is suggested to remain out of flood waters and storm water runoff as a result of attainable overflowing cesspools, sewer, manholes, pesticides, animal fecal matter, lifeless animals, pathogens, chemical compounds, and related flood particles,” county officers mentioned.

7:50 a.m.

Oahu is beneath a flood advisory till 10:45 a.m. as bands of heavy rain transfer over the island from the south, the Nationwide Climate Service mentioned.

“These bands have peak rain charges of 1 to 2 inches per hour. Extra rainfall will probably be transferring over Oahu from the south via the morning hours,” the advisory mentioned.

The heavy rain might result in minor flooding in poor drainage areas and streams, officers mentioned.

As well as, NWS mentioned a powerful thunderstorm will influence parts of the Huge Island via 8:30 a.m.

“At 7:38 a.m., doppler radar was monitoring a powerful thunderstorm able to producing a waterspout 6 miles west of wooden valley, or 37 miles southeast of Kailua-Kona, transferring north at 65 mph. …Waterspouts can simply overturn boats and create domestically hazardous waters. Gusty winds may knock down tree limbs and blow round unsecured objects,” forecasters mentioned.

The areas lined by the NWS assertion embody Volcano, Naalehu, Pahala, Wooden Valley, Kawa Flats, Hawaiian Ocean View, Punaluu Bach, Hawaii Volcanoes Nationwide Park, Discovery Harbour, Hawaii Volcanoes Park Kahuku Unit, Waiohinu and Milolii.

Maui Police, in the meantime, are asking residents to remain off the street.

“There are quite a few reviews of street closures, downed bushes, energy traces, and flooding all through Maui County,” MPD mentioned in a tweet. “Per Maui Electrical, outages are being skilled within the Pukalani and Kula areas, and components of Kihei, Makawao, and Paia. County crews are out assessing harm, clearing roadways. In case you don’t should be on the street, please keep dwelling or shelter in place.”

7:10 a.m.

The flood advisory for the japanese and southern components of the Huge Island has been prolonged to 9:45 a.m.

The Nationwide Climate Service says areas that will expertise flooding embody Hilo, Hawaiian Paradise Park, Hawaii Volcanoes Nationwide Park, Wooden Valley, Volcano, Pahala, Glenwood, Punaluu Seashore, Kawa Flats, Mountain View, Naalehu, Hawaiian Acres, Orchidlands Estates, Keaau, Pahoa, Hawaiian Ocean View, Papaikou, Fern Forest and Eden Roc.

6:30 a.m.

The flash flood warning for Molokai has been prolonged till 9:30 a.m. as heavy rain continues to pummel Maui County.

“At 6:16 a.m., radar indicated rainfall has eased however runoff ranges stay excessive,” the Nationwide Climate Service mentioned. “Kamehameha V Freeway stays closed close to mile-marker 8 as a result of mud and particles on the roadway. Extra rainfall will probably be transferring over Molokai from the south through the early-morning hours.”

Forecasters mentioned areas that can expertise flash flooding embody Kualapuu, Kaunakakai, Hoolehua, Kalaupapa Nationwide Park, Kawela, Kamalo, Maunaloa, Ualapue, Pukoo, Kepuhi, Halawa Valley and Molokai Airport.

6:10 a.m.

The Nationwide Climate Service in Honolulu has prolonged the flash flood warning for Maui till 9:15 a.m. in the present day.

The heavy rains which have doused the island since Sunday proceed in the present day and have forces the closure of Maui County places of work and public faculties.

“At 5:50 a.m., radar indicated a cluster of heavy showers transferring over Maui from the south, producing rainfall charges of 1 to 2 inches per hour,” the climate service mentioned. “Leeward Maui has acquired 6 to 10 inches of rain in a single day, and rainfall stays excessive.”

The climate service additionally issued a particular marine warning for Alenuihaha Channel, Maalaea Bay, Maui County leeward and windward waters, and Pailolo Channel till 8 a.m.

Simply earlier than 6 a.m., heavy showers had been situated over waters south and west of Maui, transferring north at 40 knots, forecasters mentioned.

Small craft might be broken in briefly larger winds and out of the blue larger waves, they mentioned.

“Keep low or go under, and ensure all on board are carrying life jackets,” the warning mentioned.

There’s a small craft advisory for waters surrounding the whole state till 6 p.m.

5:10 a.m.

Maui County places of work will probably be closed in the present day because of the heavy rain and excessive winds battering the islands.

They mentioned flooding, downed electrical traces, particles and energy outages are inflicting unsafe circumstances.

“All Maui County staff, besides these required for storm response are requested to not report back to work,” officers mentioned this morning. “The county will reevaluate circumstances to find out if operations might resume on Tuesday.”

PREVIOUS COVERAGE

A “kona low” system west of Kauai continues to blast Hawaii with torrential rains and highly effective winds in the present day, inflicting flooding, energy outages and downed bushes over Maui County and the Huge Island because the storm slowly strikes west towards Oahu and Kauai.

Early this morning, the state remained beneath a flash flood watch via Tuesday, and the Nationwide Climate Service has issued a slew of warnings and advisories, together with:

>> Flash flood warning for Maui till 6:15 a.m. and Molokai till 6:30 a.m. Forecasters mentioned components of “leeward Maui have acquired over 6 inches of rain over the previous 6 hours, and runoff stays excessive.”

>> A blizzard warning for Huge Island summits till 6 a.m. with further snow accumulations of 4 to six inches and winds gusting as excessive as 80 mph.

>> A flood advisory for the Huge Island till 6:45 a.m with attainable minor flooding on roads, poor drainage areas, and in streams.

>> A excessive surf warning for north shores of Niihau, Oahu, Molokai, Maui and the Huge Islands; and west shores of the Hawaii island till 6 a.m. A excessive surf advisory for west shores of Niihau, Kauai, Oahu, Molokai and Maui can also be in impact. Surf of as much as 28 ft is predicted alongside north shores of Niihau, Kauai, Oahu, Molokai, and Maui, and as much as 25 ft alongside the north shores of the Huge Island, whereas waves of as much as 12 ft are anticipated alongside the west shore of the Huge island north of Kua Bay.

>> A wind advisory from Oahu to the Huge Island till 6 p.m. with south winds 20 to 35 mph with localized gusts close to 50 mph anticipated. “Winds this sturdy can tear off shingles, knock down tree branches, blow away tents and awnings and likewise make it tough to steer, particularly for drivers of excessive profile automobiles.

The climate service additionally issued a “coastal flood assertion” warning that the excessive surf, “mixed with astronomical tides might produce elevated run-up alongside north going through shores within the predawn hours.”

On Saturday, NWS predicted rainfall quantities of 10-15 inches over the course of storm via Tuesday, with some components of the state attainable seeing as a lot as 25 inches.

Early in the present day, forecasters mentioned the kona low “will linger simply west of Kauai this night with a gradual westward drift lasting via Wednesday.”

They anticipate a big band of heavy rain related to this low may also observe slowly westward throughout the state.

“Anticipate widespread heavy rainfall with this method, particularly beneath the big heavy rain band, able to producing catastrophic flooding, and robust southwest winds via Wednesday,” they mentioned.

The heaviest rain is drifting west from Hawaii and Maui counties to Oahu then Kauai in the present day.

“Bettering climate circumstances will begin over the japanese facet of the state by late Tuesday with drier air slowly spreading into the western islands on Wednesday. Extra typical commerce wind climate will return from late Wednesday onward,” forecasters predict.

Quite a few energy outages and flooded roads have been reported on the Huge Island and in Maui County. Kahului Airport misplaced energy for practically two hours Sunday night and wanted turbines to show the lights again on. State transportation officers urge vacationers utilizing the airport to test their airways.

As of simply earlier than 5 a.m. in the present day, 24-hour rainfall quantities in Maui County and the Huge Island diverse extensively, however had been as excessive as 11 inches in Kula, Maui, and about 8.5 inches at Mauna Loa. On Oahu, higher Nuuanu noticed practically 3 inches of rain within the time interval.

On Oahu, the Metropolis of County of Honolulu opened 4 shelters as a precaution. They’re:

>> Kalakaua District Park, 720 McNeil St., Honolulu;

>> Makaha Group Park, 84-730 Manuku St., Waianae;

>> Sundown Seashore Recreation Middle, 59-540 Kamehameha Freeway, Haleiwa;

>> Kailua District Park, 21 S. Kainalu Drive, Kailua.

Individuals are requested to convey their very own meals, water, bedding, toiletries and provides. Extra shelter areas could also be opened relying on the severity of the storm, metropolis officers mentioned. Pets are allowed and have to be stored in a crate. The animal’s proprietor is liable for any meals and provides the pet might have, they mentioned.

Because the flooding rain spreads throughout, NWS advises the general public to:

>> Be particularly cautious at night time when it’s more durable to acknowledge the risks of flooding;

>> Avoid streams, rivers, drainage ditches, and culverts, even when they’re at present dry.

>> And don’t cross fast-flowing or rising water in your car, or on foot.

On Sunday, Hawaii County Mayor Mitch Roth declared a state of emergency “because of the menace of imminent catastrophe on Hawaii island by the use of doubtlessly heavy rainfall, lightning, excessive winds related to thunderstorms, and catastrophic flooding.”

“By declaring an emergency, we are able to maximize response and assure that the required sources will probably be made out there to our group, as they want them,” Roth mentioned in a press release. “That mentioned, we want to encourage all of our residents to stay indoors and keep off the roadways as a lot as attainable. There are lots of reviews of fallen bushes, downed energy traces, and different hazards that stay a danger, and we ask that everybody proceed with warning to maintain one another secure.”

Huge Island Civil Protection reported “widespread sturdy wind gusts” led to energy outages from Volcano to Decrease Puna and that Wooden Valley Highway in Pahala was closed due to water inundation.

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